Improved flat chain



linite /51am @sind @Mitte CHESTER KING AND S. P. JOHNSON, OF CLEVELAND,OHIO; SAID JOHNSON ASSIGNS HlSRIGHT TO 4SAID KING.

ALetters Patent N 94,757, dated Scptembw 14, 1869.

IMPROVED FLAT CHAIN.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom'fit may concern Be. it known that we, CHnsTnn KING and S. l.JOHNSON, of' Cleve-land, in the county of Cuyahoga, and State of Ohio,have invented certain new and useful Improvements in Chains; and we dohereby declare that the following is a full and complete description ofthe same, reference being had to thc accompanying drawings, making apart of this specification, in whichliigure 1 is an edge view of thechain.

Figure 2, a side view of the same.

Like letters of reference refer tolike parts in the several viewspresented.

The nature of this invention relates to a dat chain, the peculiarconstruction of which being such that the links thereof cannot becompressed together, in consequence of any unusual strain or twistingexerted upon it.

This chain, as will be seenin g. 2, is of a dat character, and is madeof cast malleable iron.

The upper-'end of each link terminates in a hook, A, whereas the lowerends are connected by a bar, B, to which said hooks are secured, asshown in the drawing.

Projecting from the bar, upwardly between the hooks, is a pair ofcurving lugs, a, whereby the said hooks are retained in close relationto the sides of the link, forming a circular bearing or hole, into whichthe hook is caught and secured.

By thus interposing the lugs between the hooks, they are, in consequencethereof, prevented from being sprung together, should the chain besubjected to suddenor violent twisting; hence, the open character of thelinks will be. preserved, and at all times in proper condition to'runover and receive the points of the sprocket-wheel, in connection withwhich it is used for drawing water, und for which purpose it is mainlyintended.

VVe are aware that flat chains have been used, and still are used forthis purpose. above specified, but such chains are usually made of wire,bent into proper shape for the links, and connected to each other byhooks.

In some of such chains the har to which the hooks are attached isstraight-,'in consequence of which the chain, on heilig twisted, andwhich it is liable to be by the swinging and rotary movement ofthebucket, the hooks become forced together, and thereby prevent the chainfrom engaging thewheel, and therefore it becomes inoperative.

To avoid this defect, some chains have the bar indented upwardly,thereby presenting a shoulder against which the hooks may draw, butinconsequence of the weakness of the material, and the constant strainexerted upon the bar by the sprockets of the wheelyand'the tendeneyofthe hooks to draw near to each other, the indentation or curve given tothe bar straightens', and, therefore, becomes of no practical valueafter being used for a short while.

This difficulty is entirely obviated in our chains, as the curvingnature of the lugs between the hooks is such as to enclose them, withthe exception ofa little space at the top, thereby forming a? hole forthe admission of the hook, and fromwhieh they cannot be forced by thetwisting of the chain.

As above said, the links are made of cast malleable iron, instead ofwire, and, therefore, are stronger and more durable than the ordinarychain?.

In order to mould them, the hooks of the pattern are arranged as shownin the upper link in fitr. 2, which,when the links are to be strungtogether, are twisted around, as shown in the second and third links,also shown in iig. 1.

Whatwe claim as our invention, and desire to secure by Letters Patent,is

The herein-described chain, the links of which are provided with lugs a,and form the hooks for connecting the links together, in themannersubstantially as described, and for the purpose set forth.

' CHESTER KING.

S. l. JOHNSON.

VitnesseS:

J. H. Bumunen, ALLAN T. BRINsMAnn.

